Exacme 18" Deluxe Unicycle Adjustable Cycling Bike Unicycle Deluxe 18-inch unicycle with oversized, chrome-plated steel frame Cushioned seat with scuff-guard protection for comfort and durability Cotterless crank arms and full-sized nylon pedals with chromoly spindles Excellent Manganese Steel, Standard Frame of Unicycle New and improved wheel mounts; sealed bearings withstand heavy loads